Small Craft Advisory 7, NWS Charleston, SC

063 
WHUS72 KCHS 142304
MWWCHS

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
604 PM EST SAT JAN 14 2012

AMZ330-350-352-354-374-150715-
/O.CON.KCHS.SC.Y.0007.120115T0500Z-120115T1600Z/
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT
20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
604 PM EST SAT JAN 14 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 11 AM EST SUNDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
11 AM EST SUNDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS AND OR SEAS ARE EXPECTED
TO PRODUCE HAZARDOUS NAVIGATING CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS...SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

483 
WHUS72 KCHS 150249
MWWCHS

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
949 PM EST SAT JAN 14 2012

AMZ330-350-352-354-374-151100-
/O.CON.KCHS.SC.Y.0007.120115T0500Z-120115T1600Z/
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT
20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
949 PM EST SAT JAN 14 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST
SUNDAY...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST SUNDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS AND OR SEAS ARE EXPECTED
TO PRODUCE HAZARDOUS NAVIGATING CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS...SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

239 
WHUS72 KCHS 150851
MWWCHS

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
351 AM EST SUN JAN 15 2012

AMZ330-350-352-354-374-151600-
/O.CON.KCHS.SC.Y.0007.000000T0000Z-120115T1600Z/
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT
20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
351 AM EST SUN JAN 15 2012

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WINDS AND OR SEAS ARE EXPECTED
TO PRODUCE HAZARDOUS NAVIGATING CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS...SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

407 
WHUS72 KCHS 151525
MWWCHS

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
1025 AM EST SUN JAN 15 2012

AMZ330-350-352-354-374-151630-
/O.CAN.KCHS.SC.Y.0007.000000T0000Z-120115T1600Z/
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT
20 NM...INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1025 AM EST SUN JAN 15 2012

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS CANCELLED THE
SMALL CRAFT ADVISORY. 

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
104 PM EST SAT JAN 14 2012

.SYNOPSIS...
HIGH PRESSURE WILL BUILD FROM THE WEST THIS WEEKEND THEN SLIP
OFFSHORE EARLY IN THE WEEK. A COLD FRONT APPROACHING FROM THE WEST
TUESDAY WILL PUSH ACROSS THE REGION TUESDAY NIGHT FOLLOWED BY HIGH
PRESSURE INTO NEXT WEEKEND.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
ONLY SLIGHT TWEAKS NEEDED TO THE ONGOING FORECAST AS PLENTY OF
SUNSHINE AND DRY CONDITIONS PERSIST THROUGH THE DAY. LOW LEVEL
THICKNESS VALUES WILL SUPPORT HIGHS RIGHT AROUND 50 DEGREES TODAY.
HOWEVER...THERE WILL SOME SLOW WARMING IN THE LOWER LAYERS AS THE
DAY GOES ON. WITH THE EFFECT OF WEAK DOWNSLOPE AND WARM AIR
ADVECTION...WE HAVE MAINTAINED HIGH TEMPS BETWEEN 50 AND 55 THIS
AFTERNOON. SHOULD SEE A BIT OF BREEZINESS THIS AFTERNOON AS LOW
LEVEL MIXING IMPROVES.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/...
TONIGHT/S PERIOD IS INTERESTING WITH SUBTLE SYNOPTIC INTRICACIES
LIKELY TO IMPACT OVERNIGHT TEMPS AND WINDS. ANOTHER SHORT WAVE
WITH A POWERFUL 110 KT 500 MB JET PROGGED TO RACE THROUGH N GEORGIA
AND SOUTH CAROLINA. SOME MID LEVEL OMEGA AND UPPER FORCING BRUSHES
OUR NORTHERN ZONES BUT ATMOSPHERE TOO DRY TO SUPPORT MUCH IN THE WAY
OF CLOUDS. TEMPS COULD MAKE A QUICK FALL AFTER SUNSET THEN BEGIN
TO RISE AS WINDS INCREASE IN RESPONSE TO THE APPROACHING TIGHT
LOW LEVEL GRADIENT. LATE TONIGHT...WE SEE SOME COLD AIR ADVECTION
AND TEMPS SHOULD FALL ONCE AGAIN. WITH 45-50 KT OF WIND AT 925 MB
SCOOTING OVER THE FORECAST AREA AFTER MIDNIGHT...SURFACE TEMPS
WILL DICTATE WIND SPEEDS BUT JUST ABOUT ALL AREAS SHOULD BE NEAR
10 KT AT SOME POINT TONIGHT.

THE UPPER RIDGE AXIS WILL REMAIN WEST OF THE AREA ON SUNDAY WITH
COOL HIGH PRESSURE AT THE SURFACE. THICKNESSES ONLY GIVE LOWER TO
MIDDLE 50S FOR HIGHS SUNDAY...BUT DOWNSLOPE FLOW IN THE LOWER 300 MB
WILL PUSH TEMPS INTO THE MID/UPPER 50S. CLEAR SKIES AND LIGHT WINDS
SUNDAY NIGHT WILL ALLOW FOR STRONG RADIATIONAL COOLING THUS LOWS
WILL PLUMMET INTO THE UPPER 20S/LOWER 30S.

MONDAY WILL BEGIN A CONSIDERABLE WARMING/MOISTENING TREND AS THE
UPPER RIDGE BUILDS EAST AND THE SURFACE HIGH PUSHES OFF THE
SOUTHEAST COAST. GFS AND ECMWF STILL PRETTY CONSISTENT REGARDING THE
APPROACH OF A COLD FRONT LATE TUESDAY AFTERNOON. MOST OF THE
PRECIPITATION WILL PROBABLY REMAIN WEST OF THE FORECAST AREA DURING
THE DAY...WITH ONLY ISOLATED SHOWERS OVER FAR WESTERN ZONES LATE IN
THE DAY. TUESDAY WILL BE BREEZY AS MIXING ABOVE 3 KFT INTERACTS WITH
ABOUT 30 KT WINDS AT 925 MB. HIGHS WILL REACH THE LOWER TO MIDDLE
60S MONDAY AND CLOSE TO 70 ON TUESDAY.

&&

.LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/...
LOW-LEVEL DEWPOINTS WILL SURGE AHEAD OF A FAST-MOVING COLD FRONT
EXPECTED TO MOVE THROUGH LATE TUESDAY NIGHT. GUIDANCE IS PERHAPS 1-2
HRS SLOWER WITH THE FROPA THAN 24 HRS AGO...BUT WE STILL EXPECT THE
FRONT TO BE PUSHING OFFSHORE BY 12Z WEDNESDAY. MODEL PW VALUES SURGE
TO NEAR 1.45 INCHES TUESDAY EVENING. THUS...DESPITE THE BEST UPPER
VORT ENERGY REMAINING PRETTY FAR TO THE NORTH...WE EXPECTED A DECENT
BAND OF SHOWERS WITH THE BOUNDARY TUESDAY NIGHT. WE MAINTAINED
CHANCE POPS AT THIS JUNCTURE.

BEHIND THE FRONT...A BROAD NW FLOW ALOFT WITH COOL SURFACE HIGH
PRESSURE OVER THE SOUTHEAST WILL MAINTAIN NEAR-NORMAL TEMPS AND DRY
WEATHER.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
VFR CONDITIONS WILL PREVAIL THROUGH THE 18Z TAF PERIOD FOR KCHS
AND KSAV. A STRONG LOW LEVEL JET WILL PASS OVER THE AREA TONIGHT
CREATING THE POTENTIAL FOR GUSTY SURFACE WINDS OR LLWS AFTER 06Z.
MENTIONED LLWS AT KSAV...BUT EXPECT GUSTY CONDITIONS TO BE MORE
LIKELY AT KCHS. AFTER SUNRISE...THE JET WILL BE PULLING AWAY FOR
THE REGION...HOWEVER...SOME OF THOSE STRONG WINDS WILL CONTINUE TO
MIX DOWN TO THE SURFACE.

EXTENDED AVIATION OUTLOOK...PATCHY FOG POSSIBLE LATE MON NIGHT WITH
BRIEF MVFR CONDITIONS. ANOTHER BRIEF PERIOD OF MVFR VSBY/CIG TUE
NIGHT IN SCATTERED SHOWERS AHEAD OF A COLD FRONT.

&&

.MARINE...
BUOY OBS CONTINUE TO SHOW LOWERING SEAS AND GUSTS OVER THE COASTAL
WATERS. THUS...HAVE ENDED ALL SMALL CRAFTS ADVISORIES FOR ALL
WATERS. EXPECT OFFSHORE FLOW TO CONTINUE THROUGH THE AFTERNOON
WITH SEAS GENERALLY 2 TO 4 FEET. TONIGHT...YET ANOTHER SURGE
AFTER MIDNIGHT WITH SCA CONDITIONS LIKELY OVER ALL WATERS AT SOME
POINT. SEAS WILL BUILD SEAWARD ONCE AGAIN TONIGHT TO 5-6 FT BEYOND
20 NM...POSSIBLY HIGHER BY DAYBREAK ON SUNDAY.

MARINE WINDS WILL DROP OFF SUNDAY INTO MONDAY AS SURFACE HIGH
PRESSURE BUILDS OVER THE WATERS. THEN ANOTHER SURGE WILL DEVELOP
FROM THE SW AS A STRONG COLD FRONT APPROACHES. SMALL CRAFT
ADVISORIES ARE LIKELY AT SOME POINT EITHER LATE MONDAY NIGHT OR ON
TUESDAY...CONTINUING INTO WEDNESDAY AS COLD ADVECTION AND DEEP
MIXING BEHIND THE FRONT MAINTAIN GUSTY WINDS. CONDITIONS WILL
IMPROVE WEDNESDAY NIGHT AND THURSDAY AS THE GRADIENT WEAKENS AND
SURFACE HIGH PRESSURE BUILDS BACK OVER THE SOUTHEAST UNITED STATES.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
SC...NONE.
MARINE...NONE.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
316 PM EST SAT JAN 14 2012

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>044-047>052-151000-
CHARLESTON HARBOR-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND JASPER-BEAUFORT-
COASTAL COLLETON-CHARLESTON-COASTAL JASPER-TIDAL BERKELEY-
316 PM EST SAT JAN 14 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

SCZ045-151000-
INLAND BERKELEY-
316 PM EST SAT JAN 14 2012

...LAKE WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM EST
SUNDAY FOR LAKE MOULTRIE...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.